In message <Pine.NEB.4.21.0004251534450.12809-100000@hawkwind.Chelsea-Ct.Org>, 
Paul Mather writes:
>So, is there anyone running NetBSD/alpha on DEC 3000/300 hardware that
>has soft updates enabled and working on their system?

Not I.

>>>>>>
>fatal kernel trap:
>
>    trap entry = 0x2 (memory management fault)
>    a0         = 0x0
>    a1         = 0x1
>    a2         = 0x0
>    pc         = 0xfffffc0000433efc
>    ra         = 0xfffffc0000433e48
>    curproc    = 0xfffffc0000d3a708
>        pid = 4, comm = ioflush

Hmm.  What kind of drive are you using?  Soft updates could change the
load patterns on a disk substantially.

-s